Tell us about your experience using containerization technologies in projects.

In QA and automation projects, I have used containerization technologies such as Docker to create isolated and reproducible testing environments. This allows tests to be run under the same conditions regardless of the developer's or server's local configuration.

For example, with Docker, you can set up a container with a database or application so that integration tests work with a real environment.

Sample Dockerfile for a testing environment:

FROM openjdk:11
COPY ./app.jar /app.jar
ENTRYPOINT ["java", "-jar", "/app.jar"]

Using containers speeds up environment setup, simplifies CI/CD processes, and improves testing stability.